Spot a dead hedgehog

People's Trust for Endangered Species, is one of the key funders of the research into the decline of the hedgehog (Where have all our hedgehogs gone? G2, January 17). Every year our mammals on roads survey asks for volunteers to report sightings of hedgehogs and it is this work that provides Dr Paul Bright with vital data. Guardian readers can help by taking part in the survey - find more information at
www.ptes.org.
Jill Nelson Chief Executive, People's Trust for Endangered Species

Where have all the hedgehogs gone? Well, they're hiding just now, but until the autumn there was a family of them chomping their way round our back garden. And lots at the allotment. But that's what it's like in Chorlton cum Hardy.Copland Smith Manchester

So the church is trying to rehabilitate Judas (Judas Iscariot: his life and good works, January 13). Surely poor Thomas should come first. He has been receiving bad press for 2,000 years for failing to believe some incredible story until he had examined the evidence for himself.Bill Thomson St Wenn, Cornwall

The Very Hungry Caterpillar is not fiscally imprudent (Bringing new life to Downing St, January 17). He invests in his future: consumption of resources leads to his emergence as a butterfly.Frances Wright Bristol

Some years ago my spellchecker highlighted "Thatcherism" and gave me the disconcerting advice that "there is no alternative"(Letters, January 17).Dr Paul Fitzpatrick Heswall, Wirral

Who needs water? Cognoscenti cook rhubarb in a microwave (Letters, January 16). It takes 60-90 minutes on defrost, but retains flavour, produces its own juice and needs a minimum of sugar (say a few film canisters worth).David Beattei Kelsall, Cheshire

Comedian Claude Dampier used a wristphone in the 1935 film She Shall Have Music (Letters, passim).John Stocks Chelmsford, Essex